Frontend React.js Developer Performance Focused Optimizer

Nguyễn Cao Nguyên

Frontend Developer (React.Js Performance

Optimization Scalable UI)

As a Frontend Developer specializing in React.js, I focus on building scalable, high-performance web applications with clean architecture and reusable components. I have strong experience in optimizing rendering performance, managing complex state, and designing maintainable UI systems. I am passionate about improving user experience through efficient data handling and responsive design. Infor

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Liên Chiểu, Đà Nẵng

Certifications

2020

JLPT N4 Japanese Certificate

Honors & Awards

2020

Excellent students and students in

the academic year 2019-2020

Core Skills

Frontend Development

• Advanced Hooks (useMemo,

useCallback, custom hooks)

• Component architecture &

reusable patterns

• Controlled vs Uncontrolled

components

• Context API & Redux for state

management

Performance Optimization

• React.memo, memoization

techniques

• Code splitting (dynamic import)

• Lazy loading

• Debounce / throttle optimization

• Tree shaking & bundle

optimization

Education

Đại học công nghệ Vạn Xuân 2018 - 2022

Software Engineering

-GPA: 3.09/4

Language: -Japanese

Work experience

TORITECH 12/2022 - 03/2026

Frontend Developer (React.js) Backend Support (Node.js - Hapi.js) TTDK App (https://ttdk.com.vn/)

• Developed a React-based scheduling system for vehicle registration workflows.

• Built reusable and scalable UI components to improve development efficiency.

• Optimized rendering performance using React.memo, useMemo, and lazy loading.

• Integrated RESTful APIs and handled asynchronous data flow efficiently.

• Applied code splitting to improve initial load performance. PIT App

• Developed dynamic user interfaces using React.js with component- based architecture.

• Built custom hooks to encapsulate business logic and improve reusability.

• Managed API communication using Axios with interceptor and centralized error handling.

• Optimized user interactions using debounce/throttle to reduce unnecessary API calls.

• Supported backend development using Node.js (Hapi.js) for mission-related features.

• Designed RESTful APIs and implemented webhook handlers for real-time processing.

Outsource Projects

• Built responsive web applications using React.js and Nuxt.js based on Figma designs

• Developed reusable UI components using Ant Design and TailwindCSS

• Improved UI performance and reduced unnecessary re-renders

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API & Data Handling

• Axios abstraction & API layer

design

• API caching strategies

• Error handling & retry logic

• Interceptors (authentication,

token refresh)

UI & Styling

• TailwindCSS, SCSS Modules

• Ant Design / MUI

• Responsive design (mobile-first)

Testing

• Unit testing (basic)

Tools & Practices

• Clean code & maintainable

structure

• Reusable component design

• Git workflow

• Wrote unit tests and resolved code quality issues (SonarQube) Freelancer 03/2026 - Now

Frontend Developer (React.js Nuxtjs)

• Built modern web interfaces using React.js

• Designed scalable and maintainable frontend architecture

• Integrated REST APIs and optimized data flow handling

• Developed responsive UI based on Figma designs

• Worked on several projects using Nuxt.js to build server-rendered web interfaces

• Converted Figma designs into Nuxt.js applications with reusable components

• Collaborated on integrating APIs within Nuxt.js environment

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